Creating efficient structures to support fast retrieval across various data types like text, images, and audio.
Multimodal indexing involves creating data structures that enable fast and efficient retrieval of diverse data types. This process supports cross-modal search and retrieval by organizing data in a way that facilitates quick access.
Indexing techniques vary by data type, with text often using inverted indexes, images using feature-based indexes, and audio using spectral or temporal indexes. Hybrid approaches may combine multiple indexing methods.